DS1672U-33/T&R Maxim Integrated Products, DS1672U-33/T&R Datasheet - Page 14

• Manufacturer Part Number: DS1672U-33/T&R
• Description: Real Time Clock Low Voltage I2C-Comp atibleTime Keeping C
• Manufacturer: Maxim Integrated Products

Figure 6. Data Transfer on I
Figure 7. Data Write: Slave Receiver Mode
Figure 8. Data Read: Slave Transmitter Mode
S - START
A - ACKNOW LEDGE
P - STOP
A - NOT ACKNOW LEDGE
R/W - READ/W RITE OR DIRECTION BIT ADDRESS = D1H
S - START
A - ACKNOW LEDGE
P - STOP
R/W - READ/W RITE OR DIRECTION BIT ADDRESS = D0H
S
S
<Slave Address>
<Slave Address>
1101000
1101000
SDA
SCL
CONDITION
START
1
0
A
A
<Word Address (n)>
XXXXXXXX
XXXXXXXX
<Data(n)>
MSB
1
2
A
A
slave address
XXXXXXXX
XXXXXXXX
(X+1 BYTES + ACKNOW LEDGE); NOTE: LAST DATA BYTE IS
<Data(n)
FOLLOW ED BY A NOT ACKNOW LEDGE (A) SIGNAL)
<Data(n+1)
2
C Serial Bus
6
(X+1 BYTES + ACKNOW LEDGE)
A XXXXXXXX
7
A XXXXXXXX
DATA TRANSFERRED
DATA TRANSFERRED
direction
R/W
8
bit
14 of 15
<Data(n+2)>
<Data(n+1)>
signal from receiver
acknowledgement
ACK
9
A XXXXXXXX
A XXXXXXXX
<Data(n+X)>
1
<Data(n+X)>
2
repeated if more bytes
are transferred
A P
A P
3 - 8
8
signal from receiver
acknowledgement
ACK
9
START CONDITION
STOP CONDITION
REPEATED
OR